Radioflash.2019.multi.720p.bluray.x264.dd5.1.dd... 〈480p HD〉

: High-definition resolution measuring 1280 x 720 pixels.

If you are looking at this specific file title, here is exactly what those technical tags mean: Radioflash.2019.MULTi.720p.BluRay.x264.DD5.1.DD...

: Contains multiple audio tracks (often different languages or a director's commentary). : High-definition resolution measuring 1280 x 720 pixels

: The title of the movie and its release year. Radioflash.2019.MULTi.720p.BluRay.x264.DD5.1.DD...